CN105682888A - Method and device for blow-molding containers which are sterile at least in some areas - Google Patents

Abstract

The invention relates to a method and a device for producing blow-molded containers (2), which are sterile at least in some areas, in a blow-molding machine. A preform (1) made of a thermoplastic material is first heated, then stretched by a stretching rod (11) in a blowing station (3), and then supplied with a pressurized fluid via a blow nozzle (10), wherein a sterilization device is arranged in the blowing station (3). The invention is characterized in that the sterilization device has at least one radiation source which emits a sterilizing radiation onto the stretching rod (11) and/or onto the blow nozzle (10).

Description

Blow molding ground manufactures the method and apparatus of at least local sterile chamber

Technical field

A kind of method that the present invention relates to that manufacture blow molding, at least locally aseptic container, in the process, first the preform being made up of thermoplastic heats, then blowing station be stretched bar stretch and adopt blow nozzle load be under pressure fluid, and, in the process, blowing station is provided with bactericidal unit.

In addition, the invention still further relates to the equipment of a kind of that manufacture blow molding, at least locally aseptic container, described device is provided with the bringing-up section that processes in preform homoiothermic and preform blow molding becomes the blowing device of container, wherein, blowing station has stretch, and, in said device, blowing station is provided with bactericidal unit.

Background technology

Produce container aseptic, blow molding and be usually done such that these containers use hydrogen peroxide or other chemicals that it is carried out sterilizing after its blow molding and before fill. It is also known that the preform used as initial product when container blow molding is carried out sterilizing, especially the inner surface area of these preforms is carried out sterilizing.

When carrying out container formation by blow gas pressure effect, the preform being made up of thermoplastic, the preform that such as will be made up of PET (polyethylene terephthalate) are sent into processing stations different in blow moulding machine. This kind of blow moulding machine is generally of heater and blowing station, in the region of these devices, the preform biaxial tension first passing through homoiothermic process in advance is become container. The compression air being sent in preform to be tensioned by blow nozzle is utilized to stretch. DE-OS4340291 just elaborates the technological process that this preform stretches.

DE-OS4212583 describes the principle structure of container formation blowing station. DE-OS2352926 elaborates the homoiothermic processing method of preform.

Different operation devices can be utilized within blowing device to transmit the container of preform and blow molding, be particularly suitable for using the transmission core bar that can plug on preform but it also may use other bogey to operate preform. Use clamp operation preform and use can stretch into the core bar that struts being fixed in preform mouth region and fall within available design structure equally.

Such as DE-OS19906438 describes a kind of method using delivery wheel process container, is arranged in by delivery wheel between blowing wheel and deferent segment.

Already described preform operation can adopt two-step method on the one hand, first makes preform with injection molding method, it is temporarily deposited, then it is carried out homoiothermic process, and blowing becomes container; On the other hand then can use single-step method, immediately it be carried out suitable homoiothermic process, then blow molding in preform injection mo(u)lding and after being sufficiently hardened.

From the blowing station used, it is known to different embodiments. If the blowing station being arranged on rotating conveyor wheels, generally adopt the mould bases that can open as books but it also may use the mould bases that can be mutually shifted or the mould bases otherwise moved. If position is fixed and is particularly suitable for holding the blowing station of multiple container formation die cavity, then generally use the flat board being arranged parallel to as mould bases.

Different preform sterilizing methods and equipment is had from prior art is known, but these shortcomings all having Technology aspect, it is impossible to while passing through at a high speed, realize the reliable sterilizing of preform.

Such as EP-A1086019 describes use high-temperature gas sterile medium and high temperature preform is carried out sterilizing. Use the independent process station being arranged in order, i.e. the first heating module, sterilization module and the second heating module. Shortcoming is the preform temperature variation characteristic in sterilization process and sterile medium outflow out of control from preform within heater.

EP-A1896245 describes and a kind of sent in low temperature preform by gas-phase sterilisation medium before heating and make its method condensed at this place. The high temperature sterilize medium flowed into it is difficult to ensure that at this on whole inner surfacies of preform, forms condensed fluid completely, because can improve the inner wall temperature of preform. In addition, sterile medium also can outflow out of control from preform within heater after evaporating in heating region.

EP-A2138298 describes a kind of device, is not arranged only at before the blow molding modular used by bactericidal unit, and after also being disposed on the blow molding modular used, therefore the consuming of mechanical erection is very big.

WO2010/020530A1 describes the structure being arranged between heater and blow molding modular by bactericidal unit. The method is difficult to the consumption that sterile medium is joined in blow molding modular region by prediction. In addition, it is impossible to control sterile medium and leak into the discharge in surrounding, therefore can not stop corresponding pollution.

Carry out sterilizing and heating at preform after, these preforms are sent into blowing station and use sterilizing blow air to be deformed into container there. Adopting blow nozzle to send into blow air and supply blow air, described blow nozzle is such as close on preform hermetically. When container blow molding, the blow air used such as flows out from stretch or passes through from stretch side. Additionally, stretch in stretch round tip region not only with preform and also contact with blown container. Therefore, in order to ensure that blown container is by abundant sterilizing, it is also desirable to consider the abundant sterilizing of stretch. Blow nozzle also to keep aseptic, in order to avoids preform germ contamination. It is have no knowledge about so far for the reliable of this and the method for simple possible technically simultaneously.

Summary of the invention

The task of the present invention is, so improves the method being initially mentioned, and is enable to ensure sufficient sterilizing in a straightforward manner.

According to the present invention, this task is that described bactericidal unit has at least one radiation source by being provided with bactericidal unit solution in blowing station, and described radiation source launches sterilizing radiation towards stretch and/or blow nozzle.

Another task of the present invention is to be so designed that the equipment being initially mentioned so that ensure effective sterilizing with less consuming.

Above-mentioned task solves by being provided with bactericidal unit in blowing station, and described bactericidal unit has at least one radiation source, and described radiation source launches sterilizing radiation towards stretch and/or blow nozzle.

Give other favourable design of this method and this equipment in the dependent claims.

It is capable of by stretch and/or blow nozzle being carried out sterilizing in blowing station region: that avoid working strength high, to the installation and removal process required for stretch or blow nozzle exterior sterilization. Another advantage is that of sterilizing radiation is used, it is possible to contactlessly irradiate those regions subject to sterilization that particularly can not disturb blow-molding process in blowing station. This proper site having only to be arranged in blowing station by radiation source, it is directed at region subject to sterilization and is connected with supply line. Another advantage is that, irradiator can send sterilizing radiation enduringly, also is understood as this sending radiation pulsedly. It is also unsurpassed advantage that stretch, blow nozzle or preform are just kept aseptic by this, because such as can connect irradiator during the blow moulding machine whole service time.

For keep aseptic advantageously, irradiator also remains on during blow-molding process short interruption. Blow moulding machine is called online operation (Inline-Betrieb) in this interruption that period will not shut down. At this online run duration, irradiator can continue to play its sterilization, keep aseptic effect. For stretch and blow nozzle sterilizing during starting at blow moulding machine, advantage is in that, during this time, irradiator is also in work and launch sterilizing radiation. Keep aseptic being meant to prevent the germ contamination again of sterilized region, and sterilizing is meant to kill already present antibacterial.

It is considered that different irradiators as radiation source. However, it is preferred to radiation source be ultraviolet radiator, with selectable radiation source, such as compared with electron radiation device, microwave radiometer or X-ray irradiator, the feature of ultraviolet radiator is: operationally technology simple and in shielding cost few. Suitable ultraviolet radiator well known in the art, for instance: ultraviolet LED, amalgam low-pressure lamp, finsen lamp (low pressure, middle pressure, high pressure, maximal pressure), excimer laser, diode laser.

Preferably arranging that ultraviolet radiator is as radiation source, described radiation source particularly launches radiation in the wave-length coverage being suitable for sterilizing, for instance in 180nm to 300nm scope, arrowband or broadband, with impulse form or continue to launch operation. When radiant intensity is within the scope of 220nm and/or 265nm intentinonally, it is believed that be best.

Favourable suggestion, stretch is by conducting the material of ultraviolet radiation, being particularly configured to by quartz glass, and ultraviolet radiation is injected in stretch, from stretch conduction to preform and is transmitted into preform inwall. Thus not only stretch sterilizing or keep aseptic, and the preform inwall also sterilizing of preform or keep aseptic. At the already known suitable glass of prior art, for instance learn from DE102009015088A1.

This point is also thus supported in an advantageous manner: stretch has at least one internal channel, ionized air and/or chemosterilization medium, particularly hydrogen peroxide and enters in preform through internal channel and/or discharge from preform. Optional or additional, use ultraviolet radiator advantageously, rinse preform by internal channel with nitrogen, in order to remove oxygen from preform, because otherwise ozone may be produced when adopting the wavelength illumination lower than about 200nm.

There is various different probability in the layout about radiation source. Such as, radiation source can refer to blowing station height and is fixedly arranged, and stretch and/or blow nozzle pass through from radiation source side when its altitude location moves. This has the advantage that on the one hand, it is not necessary to radiation source is relative to the relative motion of blowing station, and thus can avoid the intricate situation of conditional configuration aspects. On the other hand, region when thus making region that radiation covers more than radiation source relative to stretch or blow nozzle position fixed and arranged.

At this advantageously, radiation source positions is fixedly placed in blowing station, for instance, it is arranged on the framework carrying blow mold. Compared with being arranged on movable parts, however this this is also feasible in principle, this has the advantage that in configuration aspects. At this such choice arrangement and alignment so that radiation source towards stretch, towards blow nozzle towards preform and launch being likely in situation the side against preform and/or the mouth region towards preform.

Blowing for rotating at one is taken turns and is arranged this situation of multiple blowing station, it is advantageous to each blowing station has the bactericidal unit rotated together. Not only in configuration aspects and also be all (acting duration that radiation source is longer and less distance) that have superiority in sterilizing radiation effects. Such as, relatively less preferred selection such as, arranges fixing radiation source, and blowing station rotates past from its side.

At this, it is preferred that arranging that probability is in that, radiation source is arranged on blow nozzle, towards stretch and/or towards the mouth region of preform and/or radiate towards the blow nozzle field emission that contact with preform. Thus, radiation source is very closely positioned at and radiates the region that should play its sterilization effect. Another advantage is that this, this layout on blow nozzle, radiation source simple alignment can be made.

Advantageously also advising, radiation source is centrosymmetry (zentrosymmetrisch), particularly constructs circlewise, surrounds region subject to sterilization circlewise, and launches sterilizing radiation towards ring-shaped inner part. Therefore, such as also imply that such arrangement: in described arrangement, radiation source is made up of multiple sources (such as by three or more radiation sources), and these radiation sources are arranged on following radius: such as, and stretch or blow nozzle are positioned at the central point of this radius. Advantageously, thus make blow nozzle, stretch and/or preform irradiate all sidedly and intactly, be missed without region. Advantageously, radiation source is arranged circlewise and equidistantly for this with being distributed in the circumferential. The radiation source that circular structure becomes can realize above-mentioned advantage equally.

Advantageously also advise, around blow nozzle, blow out sterile air in order to form the sterile air air blast surrounding preform especially along blow nozzle and/or the direction from blow nozzle and towards preform, particularly blow out with laminar flow. By this sterile air air blast formed around preform, it is possible to substantially effectively reduce the danger of germ contamination again further, because antibacterial can not penetrate in preform or accumulate on preform.

Above the advantage described according to the inventive method is applicable in a similar manner the equipment according to the present invention.

Accompanying drawing explanation

Embodiments of the invention are shown schematically in the figures it. Accompanying drawing illustrates:

Fig. 1 is used for being manufactured the perspective view of the blowing station of container by preform,

The vertical section of Fig. 2 blow mold, preform stretches in this blow mold and expands,

The principle structure of Fig. 3 container apparatus for blow moulding illustrates schematic diagram,

Fig. 4 increases the remodeling bringing-up section of heating efficiency,

The preform that Fig. 5 illustrates with schematic section, it has and sails stretch therein into according to the first and second embodiments,

The preform being placed in blow mold that Fig. 6 illustrates with schematic section, it has the stretch that can sail into and has the blow nozzle arranged for loading blow air,

Fig. 7 is shown in two blowing station illustrated on a rotating blow wheel with constructed profile, and it has the bactericidal unit according to the first and second embodiments, and

The bactericidal unit that Fig. 8 illustrates with schematic section layout in blowing station.

Detailed description of the invention

Illustrate the principle structure of the equipment being deformed into container 2 from preform 1 in fig. 1 and 2.

Container 2 former is substantially made up of the blowing station 3 equipped with blow mold 4, it is possible to send in blow mold by preform 1, the moulding that preform 1 can be made up of polyethylene terephthalate. In order to send in blow mold 4 by preform 1 and can take out finished container 2, blow mold 4 is by half module 5,6 and can constitute by the bottom 7 that lowering or hoisting gear 8 positions. Preform 1 can be maintained at by transmission core bar 9 within the scope of blowing station 3, transmits core bar with preform 1 jointly through multiple treating stations of this device interior. But can also such as by clamp or other operation utensil, preform 1 be sent directly in blow mold 4.

In order to supply compression air, being arranged in by blow nozzle 10 below transmission core bar 9, compression air can be sent into preform 1 by this blow nozzle, can seal relative to transmitting core bar 9 simultaneously. But design can also be changed in principle: use fixing compression air supply pipe.

Utilize the stretch 11 that cylinder 12 positions to stretch preform 1. But may also be considered that in principle, by the cam section loaded by effect roller, stretch 11 is carried out machinery and position. If multiple blowing station 3 being arranged on a blowing wheel rotated, then particularly suitable use cam section. If adopting the blowing station 3 that position is fixing, then it is suitable for using cylinder 12.

According to the embodiment shown in accompanying drawing 1, tensioning system is through appropriately designed so that two cylinders 12 connect (Tandem) arrange. Before real drawing process starts, first primary cylinder 13 moves stretch 11 until entering in the region, bottom 14 of preform 1. The stretch jointly stretched out by secondary cylinder 16 or the slide block 15 by the primary cylinder 13 in cam controller location and with the primary cylinder 13 of carrying in drawing process. Especially can pass through cam and suitably control secondary cylinder 16 so that the guide wheel 17 slided along cam rail in drawing process can set that current stretch position. Guide wheel 17 is pressed to guide rail by secondary cylinder 16. Slide block 15 slides along two director elements 18. After being arranged in half module 5,6 matched moulds in bearing part 19,20 region, locking device 40 is utilized mutually to be locked by bearing part 19,20.

In order to be adapted to the difformity of the mouth section 21 of preform 1, shown in accompanying drawing 2, in the region of blow mold 4, use independent threaded insert 22.

Except the container 2 of blow molding, Fig. 2 also depicts with dotted line preform 1 and the container bubble 23 formed.

Fig. 3 show the principle structure of the blow moulding machine being furnished with bringing-up section 24 and rotating blow wheel 25. Start to be sent into bringing-up section 24 region by preform 1 by delivery wheel 27,28,29 from preform entrance 26. Pharoid 30 and aerator 31 are arranged along bringing-up section 24, in order to preform 1 is carried out homoiothermic process. Being transferred to blowing wheel 25 after preform 1 is carried out abundant homoiothermic process, blowing station 3 is arranged in blowing wheel region. It is supplied to deferent segment 32 by blowing complete container 2 by other delivery wheel.

In order to preform 1 is suitably become container 2, so that container 2 has the material behavior that the food (especially beverage) that can make fill in container 2 is available for a long time, it is necessary to observe each road processing step in the heating and position fixing process of preform 1. In addition, beneficial effect can also be realized in accordance with special Size calculation specification.

Different plastics can be used as thermoplastic, for instance PET, PEN or PP can be used.

Air guided stretching preform 1 is compressed by sending into. Compression air supply is divided into pre-blowing stage and master to blow the stage, sends into gas (such as compressing air) in the pre-blowing stage with less stress level, blows the stage master and sends into gas with higher stress level. In pre-blowing process, it is common to use pressure compression air between 10 bars to 25 bars, blow in journey main, use 25 bars to the compression air between 40 bars.

From the embodiment shown in Fig. 3 again it can be seen that bringing-up section 24 is made up of multiple revolution transmission elements 33, for instance arranged adjacent and the chain moved along deflecting roller 34 transmit element. Especially substantially rectangular elementary contour can be formed by chain columnar structure. According to embodiment shown in the drawings, in bringing-up section 24 towards the region that delivery wheel 29 and wheel for inputting 35 extend uses the relatively larger deflecting roller 34 of a size, the region of adjacent guider uses two deflecting rollers that size is smaller 36. Well imagine, however, it is also possible to adopt other guider arbitrary.

Arrangement shown in figure is particularly suitable makes delivery wheel 29 and wheel for inputting 35 close-packed arrays as far as possible each other, because three deflecting rollers 34,36 being positioned in the corresponding expanded range of bringing-up section 24, namely, respectively less deflecting roller 36 is positioned in the region transferring to bringing-up section 24 straight line portion, further, bigger deflecting roller 34 is positioned in the transmission district adjacent with delivery wheel 29 and wheel for inputting 35. Outside transmitting element 33 except with chain, it is possible to use the heating wheel such as rotated.

After completing the blowing of container 2, pickup wheel 37 is drawn off from blowing station 3 region, then passes through delivery wheel 28 and output wheel 38 sends it to deferent segment 32.

In bringing-up section 24 improved shown in Fig. 4, it is possible within the unit interval, large number of preform 1 is carried out homoiothermic process by large number of pharoid 30. Cooling air is sent in cooling air duct 39 region by aerator 31, and these cooling air ducts are each located on corresponding pharoid 30 opposite, and by flow export output cooling air. The direction of flowing out making cooling air by flowing out the layout in direction extends substantially transversely to the direction of transfer of preform 1. Heat radiation reflecting mirror can be provided in the region, surface being positioned at pharoid 30 opposite to cooling air duct 39, pharoid 30 can also be cooled down by the cooling air exported equally.

Fig. 5 illustrates and is greatly simplified two embodiments of the structure of the bactericidal unit in blowing station illustrated. In order to rough schematic view merely illustrates preform 1. In particular without illustrating that this preform 1 is placed in blow mold. It addition, to put it more simply, eliminate the blowing station parts unrelated with setting forth this embodiment equally.

The right half part of Fig. 5 illustrates stretch 11, and described stretch is such as made up of metal material in a known manner. In order to stretch preform 1, stretch 11 carries out altitude location. The lifting device being shown without it is provided with, for instance setting forth as Fig. 1 for this. Arranging multiple ultraviolet radiator 51 in the height region of stretch 11, ultraviolet radiation 52 is launched towards stretch 11 direction. Make stretch 11 be sterilized in irradiation area by these ultraviolet radiations 52 or keep aseptic. When drawing process or during stretch 11 carries out altitude location, stretch 11 moves through the ultraviolet radiator 51 being arranged in opposite side and the new region thus irradiating stretch 11 continuously with ultraviolet radiation 52. At this, the altitude location of ultraviolet radiator 51 preferably so selects so that stretch 11 starts to be scanned by ultraviolet radiation 52 from stretch most advanced and sophisticated 53 in its high degree of motion process. Can ensure that the whole region of the stretch 11 in drawing process entrance preform 1 all reliably loads ultraviolet radiation 52 in this way. Such as, ultraviolet radiator 51 can be constitute circlewise. But multiple annular can also be set and surround the ultraviolet radiator 51 of stretch 11. The state illustrated is roughly equivalent to stretch tip 53 and comes to bottom preform 14 and start to apply the moment of tensile force.

The left-half of Fig. 5 illustrates the one embodiment of the present invention compared with right half part through remodeling. In this left-half, stretch 11 is made up of the material that can conduct ultraviolet radiation. Particularly it is contemplated that be configured to by quartz glass. As relevant with the right half part of Fig. 5 implement, the height region of stretch 11 arranges ultraviolet radiator 51, described ultraviolet radiator towards stretch 11 direction launch ultraviolet radiation 52. Owing to stretch 11 is such as made up of quartz glass, therefore ultraviolet radiation 52 can be injected in stretch 11. Ultraviolet radiation 52 is directed in stretch 11, particularly carries out towards preform 1 direction, and the height region h of stretched bar surface and stretched bar 11 out and is particularly mapped on the inner surface 54 of preform 1 from this.

The guiding of the ultraviolet radiation 52 in stretch 11 can thus be supported: what setting was shown without is coupled into device, in order to be targetedly coupled in stretch 11 by ultraviolet radiation 52. Such as, this can being coupled in region and be provided with reflecting mirror, prism or similar article. For example, it is also possible to adopt ultraviolet optical fibers to be sent into from the outside in stretch 11 by ultraviolet radiation 52. The device transmitting emitting ultraviolet radiation can also be set in stretch 11 or on stretch side. For example, it is possible to be provided with scattering object in stretch material on the length areas h of stretch 11, or, the surface of stretch 11 can be configured to targetedly radiate by polished surface. Preferably, on length areas h, stretch 11 is launched ultraviolet radiation 52, described length areas starts to extend to following height from stretch tip 53, this is highly equivalent to such height: stretch 11 sinks to when sailing preform 1 into until above-mentioned height, until setting on preform 1 bottom section. But emitting area can also be longer, in order to launch ultraviolet radiation 52 during drawing process as far as possible on the whole height region of the container 2 produced.

It addition, change with Fig. 5 right half part, the stretch 11 in Fig. 5 left-half has centre bore 55, makes such as ionized air 56 can enter in preform 1 by this hole, in order to be blown out from preform 1 by foul. By this internal channel 55, make hydrogen peroxide 57 or other suitable chemosterilization medium (such as with gas shape coherent condition) can also enter in preform 1, in order to produce additional sterilizing. It is also contemplated that, this internal channel 55 is applied not only to input the medium being previously mentioned, and is also used for discharging, say, that ionized air 56 or gas shape hydrogen peroxide 57 can pass through this internal channel 55 and discharge from preform 1. In a way not illustrated, stretch 11 can also have multiple internal channel 55, and then, these internal channels are such as applied not only to input and can also be used for discharging medium. A passage input ionized air 56 in these passages 55 can also be passed through and input hydrogen peroxide 57 by another passage of these passages 55 or discharge. It is also contemplated that all passages 55 are in an identical manner for the input of medium being previously mentioned and/or discharge. These flexible programs also are able to all be diverted to the stretch 11 of right half figure.

Fig. 6 illustrates another embodiment of the present invention with high level schematic diagram. Show that the blow nozzle 10 for sending into blow air, such as this such as having illustrated by means of Fig. 1. Arrange according to the present invention, in blow nozzle 10, be provided with ultraviolet radiator 60. At this, these ultraviolet radiators are arranged so that ultraviolet radiation 61 is launched towards stretch 11 direction. Also irradiate the neck area 21 of preform 1 simultaneously, and the inner chamber of blow nozzle 10 also loads ultraviolet radiation 61. Here, ultraviolet radiator 60 is also be circular layout or annular composition. Due to the relative motion between blow nozzle 10 and stretch 11, the certain length region of stretch 11 being irradiated by ultraviolet radiation 61, described length areas starts to extend to the end position of stretch 11 from stretch tip 53. In the outside of and above of blow nozzle 10, other ultraviolet radiator 51 of additional arrangement, these ultraviolet radiators described launch ultraviolet radiation 52 towards stretch 11. This can be consulted Fig. 5.

Fig. 7 illustrates blowing wheel 25 with high level schematic diagram, and it has two blowing station illustrated 3, and it is respectively arranged with two blow mold half modules 5,6. Taking turns the blowing station 3 shown in 25 six-o ' clock positions in blowing and have the ultraviolet radiator 70 of annular encirclement blow nozzle 10, these ultraviolet radiators 70 are arranged so as to and are directed at so that the blow nozzle 10 moved across from the side is irradiated by ultraviolet radiation 74. And here it is also preferred that be irradiated the blow nozzle 10 side towards preform 1, the region particularly contacted with preform 1. As long as blow nozzle 10 descending motion at the beginning, in order to drop on preform 1 hermetically, also irradiate, with ultraviolet radiation 71, the region that blow nozzle 10 is adjacent.

Take turns the blowing station 3 shown in 25 four positions in blowing and there is ultraviolet radiator 73, described ultraviolet radiator fixed and arranged and so carry out altitude location and alignment so that the blow nozzle 10 moved across from the side is irradiated by ultraviolet radiation 74. And here it is also preferred that be irradiated the blow nozzle 10 side towards preform 1.

Fig. 8 illustrates ultraviolet radiator 80 with high level schematic section and is arranged on the standing part of blowing station 3. Can be perceptible, ultraviolet radiation 81 not only loads the bottom 82 of blow nozzle 10, and loads the neck area 21 of preform 1. Position through blow nozzle 10 towards the direction of preform 1 as long as no the stretch illustrated, then stretch is just irradiated by UV light. In the manner described, sterilizing radiation covers all regions, and this is to reliable sterilizing or keeps aseptic extremely important.

Claims (22)

1. one kind is used for manufacturing blow molding in blow molding machine, the at least method of the container (2) that local is aseptic, in the process, first preform (1) heating being made up of thermoplastic, and then stretched by stretch (11) in blowing station (3), and the fluid being under pressure is loaded by blow nozzle (10), and, in the process, it is provided with bactericidal unit in blowing station (3), it is characterized in that, bactericidal unit has at least one radiation source, sterilizing radiation-emitting to stretch (11) above and/or is transmitted on blow nozzle (10) by described radiation source.

2. in accordance with the method for claim 1, it is characterised in that during blow-moulding process, and/or at online run duration, and/or during blow molding machine starts, launch sterilizing radiation.

3. the method described in claim 1 or 2, it is characterised in that radiation source is UV ray radiation source and launches ultraviolet radiation.

4. in accordance with the method for claim 3, it is characterized in that, stretch (11) is made up of the conduction material of ultraviolet radiation, particularly quartz glass, further, ultraviolet radiation is made to be injected in stretch (11), be transmitted to preform (1) from stretch (11) and be mapped on preform inwall.

5. according to method in any one of the preceding claims wherein, it is characterized in that, stretch (11) has at least one internal channel, further, derive in ionized air and/or chemosterilization medium import to preform (1) through this internal channel and/or from preform (1).

6. according to method in any one of the preceding claims wherein, it is characterized in that, radiation source is highly fixedly arranged with reference to blowing station (3), further, stretch (11) and/or blow nozzle (10) pass through from radiation source moved aside when this stretch and/or blow nozzle carry out altitude location motion.

7. in accordance with the method for claim 6, it is characterized in that, radiation source is fixedly arranged relative to blowing station (3) position, further, emit radiation into blow nozzle (10) and/or to be transmitted in the mouth region (21) of preform (1) on the side of preform (1).

8. the method described in claim 6 or 7, it is characterised in that be provided with multiple blowing station (3) in blowing wheel (25) rotated, and, each blowing station (3) has the bactericidal unit taken with rotation.

9. according to method in any one of the preceding claims wherein, it is characterized in that, radiation source is arranged on blow nozzle (10), further, the mouth region (21) emitting radiation in stretch (11) and/or being transmitted into preform (1) above and/or is transmitted on the blow nozzle region contacted with preform (1).

10., according to method in any one of the preceding claims wherein, it is characterised in that radiation source is symmetrically, particularly constructs circlewise, radiation source surrounds region subject to sterilization circlewise, and, by sterilizing radiation-emitting to this ring-shaped inner part.

11. according to method in any one of the preceding claims wherein, it is characterized in that, by sterile air around blow nozzle (10), especially along blow nozzle (10) and/or (10)s and the direction towards preform (1) blow out, particularly blow out with laminar flow, are used for forming sterile air air blast from blow nozzle.

12. one kind for manufacturing blow molding, the at least equipment of the container (2) that local is aseptic, described equipment has bringing-up section (24), preform (1) homoiothermic for being made up of thermoplastic processes, and, described equipment has at least one blowing station (3), for preform (1) blowing is deformed into container (2), wherein, blowing station (3) has stretch (11), for preform (1) is stretched, and, blowing station has blow nozzle (10), for loading the fluid being under pressure to preform (1), and, in the apparatus, bactericidal unit it is provided with in blowing station, it is characterized in that, bactericidal unit has at least one radiation source, sterilizing radiation-emitting to stretch (11) above and/or is transmitted on blow nozzle (10) by this radiation source.

13. the equipment described in claim 12, it is characterised in that bactericidal unit is controlled, during blow-moulding process, and/or at online run duration, and/or during this equipment starts, launch sterilizing radiation.

14. the equipment described in claim 12 or 13, it is characterised in that radiation source is configured to launch the UV ray radiation source of ultraviolet radiation.

15. the equipment described in claim 14, it is characterised in that stretch (11) is configured to by the conduction material of ultraviolet radiation, particularly quartz glass.

16. according to equipment in any one of the preceding claims wherein, it is characterized in that, stretch (11) has at least one internal channel, source or the trap of this internal channel and ionized air and/or be in valve control be connected with source or the trap of chemosterilization medium, in order to derive in making ionized air and/or chemosterilization medium import to preform (1) through internal channel and/or from preform (1).

17. according to equipment in any one of the preceding claims wherein, it is characterized in that, radiation source is highly fixedly arranged with reference to blowing station (3) so that stretch (11) and/or blow nozzle (10) pass through from radiation source moved aside when this stretch and/or blow nozzle carry out altitude location motion.

18. the equipment described in claim 17, it is characterized in that, radiation source is fixedly arranged relative to blowing station (3) position so that this radiation source emits radiation into blow nozzle (10) and and/or is transmitted in the mouth region (21) of preform (1) on the side of preform (1).

19. the equipment described in claim 17 or 18, it is characterised in that be provided with multiple blowing station (3) in blowing wheel (25) rotated, and, each blowing station (3) has the bactericidal unit taken with rotation.

20. according to equipment in any one of the preceding claims wherein, it is characterized in that, radiation source is arranged on blow nozzle (10) so that this radiation source emits radiation in stretch (11) and/or is transmitted into the mouth region (21) of preform (1) and above and/or is transmitted on the blow nozzle region contacted with preform (1).

21. according to equipment in any one of the preceding claims wherein, it is characterised in that radiation source is symmetrically, particularly constructs circlewise, this radiation source surrounds region subject to sterilization circlewise, and, by sterilizing radiation-emitting to this ring-shaped inner part.

22. according to equipment in any one of the preceding claims wherein, it is characterized in that, this equipment has the sterile air floss hole of supply sterile air in blowing station region, this sterile air floss hole is arranged and configured to: by sterile air around blow nozzle (10), especially along blow nozzle (10) and/or (10)s and the direction towards preform (1) blow out, particularly blow out with laminar flow, in order to form sterile air air blast from blow nozzle.